IC Card Asymmetric Labeling and Secure Password Input
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Solution Overview
Problem
Current IC card payment systems face security risks due to potential tampering of public payment terminals, increased transaction time due to unfamiliar terminal interfaces, and hygiene concerns, while lacking robust password setting and resetting mechanisms and asymmetric labeling systems.
Innovation Solution
An IC card with a crypto-key unit and communication module for secure transactions, including an asymmetric labeling system where the open ID is processed on the card and user information is encrypted, with password input via a customizable touchpad array on the card, allowing direct communication with the cloud for secure authentication and transaction processing.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If password is input on public payment terminal, then transaction can be completed, but security risk increases due to potential tampering
Solution Approach 1:
The patent extracts the password input function from the public payment terminal and relocates it to the IC card itself through a built-in keyboard. This separation removes the vulnerable password input process from the potentially compromised terminal environment, allowing users to input passwords securely on their own card before transmission to the terminal for transaction completion.
Solution Approach 2:
The IC card acts as an intermediary device between the user and the payment terminal. The built-in keyboard on the card serves as a trusted mediator that captures password input directly on the card rather than on the terminal, eliminating the need for users to trust the terminal's input mechanisms while still enabling transaction processing through the terminal.
2Adaptability or versatility
If unfamiliar payment terminal is used, then transaction location flexibility increases, but transaction time increases due to learning curve
Solution Approach 1:
The IC card with built-in keyboard provides self-service functionality by containing its own input interface. Users interact with familiar keyboard controls directly on their card rather than needing to adapt to varying terminal interfaces. This self-contained approach maintains operational consistency across different locations and terminals, eliminating the time loss associated with learning new terminal interfaces while preserving location flexibility.
3Reliability
If password input on public terminal is required, then transaction security can be verified, but hygiene concern increases
Solution Approach 1:
The patent extracts the password input interface from the shared public terminal and places it on the user's personal IC card. This physical separation eliminates contact with potentially contaminated terminal surfaces while maintaining the security verification function, as the password is still transmitted through the secure communication channel between the card and terminal.
4Reliability
If asymmetric labeling system is implemented, then security against information extraction improves, but system complexity increases
Solution Approach 1:
The patent implements asymmetric labeling where the IC card displays only an open ID (such as a card number or identifier) that can be freely shared, while the user's personal information remains encrypted and stored securely in the terminal or backend system. This asymmetric approach allows public identification without exposing sensitive data, enhancing information security while maintaining simple user interaction through the displayed open ID.
Data Source
AI summary
Disclosed are an IC card asymmetric labelling system, an IC card built-in password input system and an IC card built-in password input method. The IC card asymmetric labelling system includes: an IC card, a payment terminal and a cloud end sever. The IC card includes a crypto-key unit and a communication module. The crypto-key unit stores a first private key which is used to sign a message transmitted from the IC card. The communication module establishes a communication connection with a cloud end through the payment terminal, or directly establishes a communication connection with the cloud end. The cloud end stores an open ID of the IC card and associated user information. The open ID is a hash value of a first public key of the IC card and is open to the public.